A kind of preparation method of two-component waterborne polyurethane automobile topcoat

【Application Number】: CN201410473373.0

【Application Date】: 2014.09.16

【Publication Number】: CN104194604A

[Open date]: 2014.12.10

【Applicant】: Jiangsu Tiancheng Car Decoration Technology Co., Ltd.

【Abstract】: The present invention provides a two-component water-based polyurethane automotive topcoat material. Material wetting agent 0.2-0.8%, leveling agent 0.3-0.5%, defoamer 0.01-0.1%, preservative 0.1-0.3%, water-based polyisocyanic acid 15-25%, co-solvent 1-3%; The two-component water-based polyurethane automotive topcoat provided by the invention has high gloss, excellent mechanical properties and chemical medium resistance, greatly reduces VOC emissions, and reduces environmental pollution and damage.